Motoi introduces Eripiyo and Kumasa to his little sister, Rena, who went to the Okayama Girls' Festa with him. She tags along with him to see ChamJam perform after seeing them at Girls' Festa and her favorite just happens to be Maina.
When did I become so selfish?
Wann bin ich denn nur
so eifersüchtig geworden?
¿Cuándo me volví tan egoísta?
Quand suis-je devenue si égoïste ?
Como pude ser tão egoísta?